Patents by Inventor Sreenivasan Koduri

Sreenivasan Koduri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240096771
    Abstract: An electronic device includes a multilevel metallization structure, a semiconductor die, and a package structure. The multilevel metallization structure has multiple levels of conductive metal traces and vias and polyimide insulator material, including a first level along a first side and a final level along a second side. The first level includes conductive metal leads with exposed surfaces along the first side, and the final level includes conductive metal pads with exposed surfaces along the second side. The semiconductor die is flip chip attached to the first side of the multilevel metallization structure with conductive features connected to respective conductive metal pads of the final level of the multilevel metallization structure, and the package structure encloses the semiconductor die and portions of the first side of the multilevel metallization structure.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 21, 2024
    Inventors: Osvaldo Lopez, Salvatore Pavone, Sreenivasan Koduri
  • Publication number: 20240096767
    Abstract: An electronic device includes a metal heat slug, a semiconductor die, and a package structure. The metal heat slug has a first portion, a second portion, and a third portion, the second portion is spaced apart from the first portion, and the third portion connects the first and second portions. The semiconductor die is attached to the third portion of the metal heat slug to measure a current of the third portion of the metal heat slug, and the package structure encloses the semiconductor die and the third portion of the metal heat slug and exposes sides of the first and second portions of the metal heat slug.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 21, 2024
    Inventors: Hank Sung, Dok Won Lee, Wai Lee, Sreenivasan Koduri
  • Patent number: 11908776
    Abstract: A semiconductor device includes a metal substrate including a through-hole aperture having a multi-size cavity including a larger area first cavity portion above a smaller area second cavity portion that defines a first ring around the second cavity portion, where the first cavity portion is sized with area dimensions to receive a semiconductor die having a top side with circuitry coupled to bond pads thereon and a back side with a metal (BSM) layer thereon. The semiconductor die is mounted top side up with the BSM layer on the first ring. A metal die attach layer directly contacts the BSM layer, sidewalls of the bottom cavity portion, and a bottom side of the metal substrate.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: February 20, 2024
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Patent number: 11282770
    Abstract: A leadless packaged semiconductor device includes a metal substrate having at least a first through-hole aperture having a first outer ring and a plurality of cuts through the metal substrate to define spaced apart metal pads on at least two sides of the first through-hole aperture. A semiconductor die that has a back side metal (BSM) layer on its bottom side and a top side with circuitry coupled to bond pads is mounted top side up on the first outer ring. A metal die attach layer is directly between the BSM layer and walls of the metal substrate bounding the first through-hole aperture that provides a die attachment that fills a bottom portion of the first through-hole aperture. Bond wires are between metal pads and the bond pads. A mold compound is also provided including between adjacent ones of the metal pads.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: March 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Publication number: 20210202345
    Abstract: In some examples, a package comprises a platform and at least one pedestal positioned along at least a portion of a perimeter of the platform. The platform and the at least one pedestal form a cavity. The package also comprises a die positioned in the cavity and on the platform, with the die having an active circuit facing away from the platform. The package also comprises a conductive layer coupled to the die and to a conductive terminal. The conductive terminal is positioned above the at least one pedestal, and the die and the conductive terminal are positioned in different horizontal planes.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Inventor: Sreenivasan KODURI
  • Publication number: 20210125902
    Abstract: A semiconductor device includes a metal substrate including a through-hole aperture having a multi-size cavity including a larger area first cavity portion above a smaller area second cavity portion that defines a first ring around the second cavity portion, where the first cavity portion is sized with area dimensions to receive a semiconductor die having a top side with circuitry coupled to bond pads thereon and a back side with a metal (BSM) layer thereon. The semiconductor die is mounted top side up with the BSM layer on the first ring. A metal die attach layer directly contacts the BSM layer, sidewalls of the bottom cavity portion, and a bottom side of the metal substrate.
    Type: Application
    Filed: January 6, 2021
    Publication date: April 29, 2021
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Patent number: 10957635
    Abstract: A packaged semiconductor device includes a metal substrate having a first and second through-hole aperture having an outer ring, and metal pads around the apertures on dielectric pads. A first and second semiconductor die have a back side metal (BSM) layer on its bottom side are mounted top side up on a top portion of the apertures. A metal die attach layer is directly between the BSM layer and walls of the metal substrate bounding the apertures to provide a die attachment for the first and the second semiconductor die that fills a bottom portion of the apertures. Leads contact the metal pads, wherein the leads include a distal portion that extends beyond the metal substrate. Bondwires are between the metal pads and bond pads on the first and second semiconductor die, and a mold compound provides encapsulation for the packaged semiconductor device.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 23, 2021
    Assignee: Texas Instruments Incorporated
    Inventors: Nazila Dadvand, Sreenivasan Koduri, Benjamin Stassen Cook
  • Publication number: 20210013133
    Abstract: A leadless packaged semiconductor device includes a metal substrate having at least a first through-hole aperture having a first outer ring and a plurality of cuts through the metal substrate to define spaced apart metal pads on at least two sides of the first through-hole aperture. A semiconductor die that has a back side metal (BSM) layer on its bottom side and a top side with circuitry coupled to bond pads is mounted top side up on the first outer ring. A metal die attach layer is directly between the BSM layer and walls of the metal substrate bounding the first through-hole aperture that provides a die attachment that fills a bottom portion of the first through-hole aperture. Bond wires are between metal pads and the bond pads. A mold compound is also provided including between adjacent ones of the metal pads.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Patent number: 10892209
    Abstract: A semiconductor device includes a metal substrate including a through-hole aperture having a multi-size cavity including a larger area first cavity portion above a smaller area second cavity portion that defines a first ring around the second cavity portion, where the first cavity portion is sized with area dimensions to receive a semiconductor die having a top side with circuitry coupled to bond pads thereon and a back side with a metal (BSM) layer thereon. The semiconductor die is mounted top side up with the BSM layer on the first ring. A metal die attach layer directly contacts the BSM layer, sidewalls of the bottom cavity portion, and a bottom side of the metal substrate.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 12, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Publication number: 20200357725
    Abstract: A leadless packaged semiconductor device includes a metal substrate having at least a first through-hole aperture having a first outer ring and a plurality of cuts through the metal substrate to define spaced apart metal pads on at least two sides of the first through-hole aperture. A semiconductor die that has a back side metal (BSM) layer on its bottom side and a top side with circuitry coupled to bond pads is mounted top side up on the first outer ring. A metal die attach layer is directly between the BSM layer and walls of the metal substrate bounding the first through-hole aperture that provides a die attachment that fills a bottom portion of the first through-hole aperture. Bond wires are between metal pads and the bond pads. A mold compound is also provided including between adjacent ones of the metal pads.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Publication number: 20200357726
    Abstract: A leadless multichip semiconductor device includes a metal substrate having a through-hole aperture with an outer ring for holding a bottom semiconductor die with an inner row and an outer row of metal pads. The bottom semiconductor die has a back side metal (BSM) layer on its bottom side and a top side with bond pads mounted top side up on the ring. A metal die attach layer is directly between the BSM layer and walls of the metal substrate providing a die attachment that fills a bottom portion of the aperture. Bond wires are between the inner metal pads and the bond pads. A top semiconductor die has top bond pads mounted top side up on a dielectric adhesive on the bottom semiconductor die. Pins connect the top bond pads to the outer metal pads. A mold compound provides isolation between adjacent ones of the metal pads.
    Type: Application
    Filed: May 9, 2019
    Publication date: November 12, 2020
    Inventors: Nazila Dadvand, Sreenivasan Koduri, Benjamin Stassen Cook
  • Patent number: 10832991
    Abstract: A leadless packaged semiconductor device includes a metal substrate having at least a first through-hole aperture having a first outer ring and a plurality of cuts through the metal substrate to define spaced apart metal pads on at least two sides of the first through-hole aperture. A semiconductor die that has a back side metal (BSM) layer on its bottom side and a top side with circuitry coupled to bond pads is mounted top side up on the first outer ring. A metal die attach layer is directly between the BSM layer and walls of the metal substrate bounding the first through-hole aperture that provides a die attachment that fills a bottom portion of the first through-hole aperture. Bond wires are between metal pads and the bond pads. A mold compound is also provided including between adjacent ones of the metal pads.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: November 10, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Patent number: 10832993
    Abstract: A leadless multichip semiconductor device includes a metal substrate having a through-hole aperture with an outer ring for holding a bottom semiconductor die with an inner row and an outer row of metal pads. The bottom semiconductor die has a back side metal (BSM) layer on its bottom side and a top side with bond pads mounted top side up on the ring. A metal die attach layer is directly between the BSM layer and walls of the metal substrate providing a die attachment that fills a bottom portion of the aperture. Bond wires are between the inner metal pads and the bond pads. A top semiconductor die has top bond pads mounted top side up on a dielectric adhesive on the bottom semiconductor die. Pins connect the top bond pads to the outer metal pads. A mold compound provides isolation between adjacent ones of the metal pads.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: November 10, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Nazila Dadvand, Sreenivasan Koduri, Benjamin Stassen Cook
  • Publication number: 20200312747
    Abstract: A semiconductor device includes a metal substrate including a through-hole aperture having a multi-size cavity including a larger area first cavity portion above a smaller area second cavity portion that defines a first ring around the second cavity portion, where the first cavity portion is sized with area dimensions to receive a semiconductor die having a top side with circuitry coupled to bond pads thereon and a back side with a metal (BSM) layer thereon. The semiconductor die is mounted top side up with the BSM layer on the first ring. A metal die attach layer directly contacts the BSM layer, sidewalls of the bottom cavity portion, and a bottom side of the metal substrate.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 1, 2020
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Sreenivasan Koduri
  • Publication number: 20200303285
    Abstract: A packaged semiconductor device includes a metal substrate having a first and second through-hole aperture having an outer ring, and metal pads around the apertures on dielectric pads. A first and second semiconductor die have a back side metal (BSM) layer on its bottom side are mounted top side up on a top portion of the apertures. A metal die attach layer is directly between the BSM layer and walls of the metal substrate bounding the apertures to provide a die attachment for the first and the second semiconductor die that fills a bottom portion of the apertures. Leads contact the metal pads, wherein the leads include a distal portion that extends beyond the metal substrate. Bondwires are between the metal pads and bond pads on the first and second semiconductor die, and a mold compound provides encapsulation for the packaged semiconductor device.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 24, 2020
    Inventors: Nazila Dadvand, Sreenivasan Koduri, Benjamin Stassen Cook
  • Publication number: 20150014832
    Abstract: A semiconductor device (100) comprises a semiconductor chip (310) attached to the pad (302) of a planar leadframe and connected by bonding wires (411) to two leads (403) of the leadframe. The device further includes a plastic body (130) encapsulating chip and wires, the body shaped as a pentahedron with two sides (101, 102) touching at right angle, opposite body ends formed by parallel planes configured as right-angle triangles. The pad (302) and the two leads (303) are exposed from the plastic surface at one body end in order to be operable as solderable device pins positioned in the corners of the triangle.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Inventors: Reynaldo Corpuz Javier, Sreenivasan Koduri
  • Patent number: 8810023
    Abstract: A packaged sensor MEMS (100) has a semiconductor chip (101) with a protected cavity (102) including a sensor (105), the cavity surrounded by solder bumps (130) attached to the chip terminals; further a leadframe with elongated and radially positioned leads (131), the central lead ends (131a) attached to the bumps. Insulating material (120) encapsulates chip and central lead ends, leaving the chip surface (101a) opposite the cavity and the peripheral lead ends (131b) un-encapsulated. The un-encapsulated peripheral lead ends are bent into cantilevers for attachment to a horizontal substrate (160), the cantilevers having a geometry to accommodate, under a force lying in the plane of the substrate, elastic bending and stretching beyond the limit of simple elongation based upon inherent material characteristics, especially when supported by lead portions with curved, toroidal, or multiple-bendings geometries.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: August 19, 2014
    Assignee: Texas Instruments Incorporated
    Inventor: Sreenivasan Koduri
  • Publication number: 20140008737
    Abstract: A packaged sensor MEMS (100) has a semiconductor chip (101) with a protected cavity (102) including a sensor (105), the cavity surrounded by solder bumps (130) attached to the chip terminals; further a leadframe with elongated and radially positioned leads (131), the central lead ends (131a) attached to the bumps. Insulating material (120) encapsulates chip and central lead ends, leaving the chip surface (101a) opposite the cavity and the peripheral lead ends (131b) un-encapsulated. The un-encapsulated peripheral lead ends are bent into cantilevers for attachment to a horizontal substrate (160), the cantilevers having a geometry to accommodate, under a force lying in the plane of the substrate, elastic bending and stretching beyond the limit of simple elongation based upon inherent material characteristics, especially when supported by lead portions with curved, toroidal, or multiple-bendings geometries.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 9, 2014
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Sreenivasan KODURI
  • Publication number: 20130307117
    Abstract: A thin-contour semiconductor device with a solenoid and iron core integrated into the device package. The solenoid windings are constructed by a stripe-shaped layer portion, deposited on the chip surface, and an arced wire portion welded to the layer portion by low-cost standard wire bonding technique. The stripes are arrayed parallel to each other, spaced apart respective insulating gaps. The arced wires span from one stripe to the adjacent next stripe by bridging the gap and keeping the clock direction constant. The arced solenoid windings are then integrated into the encapsulating device package. The ferromagnetic core may be shaped as a ring to allow the formation of a strong and nearly homogeneous magnetic field inside the solenoid, providing reliable energy storage for power supply circuits.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 21, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Sreenivasan KODURI
  • Patent number: 8476760
    Abstract: Bond pads on an integrated circuit are provided with planarizing dielectric structures to permit the electroplating of metal posts having planar top surfaces. The metal posts contact at least three sides of the planarizing dielectric structures. The planarizing dielectric structures can be used on integrated circuits having bond pads of different sizes to electroplate metal posts having the same height.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: July 2, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Manoj K. Jain, Sreenivasan Koduri